Rock-breaker.



G. C. LANE. ROCK BRBAKER.` APPLIomloN FILED JULY 16,1906. 936,729, Patented Oct. 12, 1909, z SHEETS-snm 1.

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Specification of Letters Patent.

Patented Get. 12, 1909.

Application filed July 16, 1906. Serial No. 326,512.

To all whom it may concern:

Be it known that I, CHARLES C. LANE, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Rock-Breaker, of which the following is a specification.

lt is the object of this invention to provide a powerful Vrock-breaker of maximum capacity, minimum weight, and minimum number of parts, which can be constructed of steel or other strong material in knockdown form and can be readily transported by pack animal into mountainous sections otherwise inaccessible, and which will enable prospectors and persons developing mines to provide themselves with means for developing and working such mines.

A principle of this invention is the application of means for employing high speed and short stroke with ready feeding of the rock or ore to be broken. Y

Other principles, objects and advantages may appear from the subjoined detailed description.

The accompanying drawings illustrate the invention :M

Figure 1 is a plan view showing my invention embodied in one form. of rock-breaker. Fig. 2 is a sectional elevation on line a02, Fig. 1, the pit-man being shown int-act. Fig. 3 is a cross-sectional elevation on line ma, Figs. 1 and 2. Fig. 4f is an end elevation of the crushing body with frame in section on line aft, Figs. 1 and 2. Fig. 5 is a fragmental detail illustrating construction of the frame, parts being separated for clearness of illustration. Fig. 6 is an elevation showing the frame in longitudinal mid-section and the body or Crusher in elevation. In this view the Crusher body is shown suspended in the way by links. Fig. 7 is a sectional detail on line m7, Fig. 6. Fig. 8 is a view corresponding to Fig. 6, showing` the body suspended by downwardly-extending links. Fig. 9 is a section on line fr, Fig. 8. Fig. 10 is a detail sectional view showing a form of construction for the frame and Crusher body of rolled channel steel.

Arrows on line of section in the several views indicate the direction of sight.

The frame 1 has a vertical opening 4forming the crushing-chamber 2, said chamber being open at the top and bottom and diamond-shape in plan7 and thewalls of the chamber being substantially Vertical upon their inner faces. The crushing-hammer 3 is diamond-shape in plan and of substantially the same shape as the chamber, and the crushing surfaces 6 slant downwardly and outwardly from the center, so that the inner face 5 of the crushing-chamber and the outer face 6 of the crushing-hammer form a wedgeshape opening 7 to receive the ore or rock to be crushed. Bearing-openings extend from each end of the crushing chamber, and slideblocks extend from each end of the crushinghammer into the bearing-openings, and links 10 connect the pivots 11 fixed in the frame to the pivots 12 fixed in the slide-blocks so that the crushing-hammer is supported by and swings upon the links, as shown in Figs. 6 and 8, and the links may depend from the pivots 11, as shown in Fig. G, or extend upwardly from the pivots 11, as shown in Fig. 8; or the slide-blocks of the crushing-hammer may slide upon the ways '14, as shown in Fig. 2. By the link-support friction is avoided and a swinging motion is imparted to the crushing-hammer. The crushingchamber has longitudinally straight portions 8 at its sides, and the crushing-hammer has corresponding straight portions 9 to allow reciprocation of the hammer in the chamber.

'lhe machine may be built of cast or rolled steel, iron, or any other suitable material. The body 3 may be formed of a. base as 15 and a frusto-pyramidal cap 16 detachably fastened to the base 15 by a bolt 17.

18 designates zinc backing for the various working parts which may be interposed between the same and the base 15 or the body of the. frame. Detachable working faces may or may not be employed. 19 designates such detachable parts.

ln practice, the crushing hammer 3 will be reciprocated horizontally at appropriate speed, say G50 or 1000 strokes per minute, more or less, the full length of a stroke from end to end being not t0 exceed one-half inch.

rl`he ore or rock to be crushed will be fed into the crushing-hammer on top of the cap 16 and will pass down the wedge-shape openings 7 and will be broken by an obl-ique blow between two parallel faces. As the crushinghammer reciprocates in the direction of its longest dimension the crushing-chamber is t practically divided into four parts, two parts t receiving t-he force in one direction and two is adapted to be mounted in the chamber 2,V

parts receiving the force in the other direction, and the crushing-hammer serving as a wedge between the two corresponding parts. As the rock is crushed it passes down through the crushing-chamber 2 and escapes at the bottom thereof. The rock-crushing action takes place simultaneously on opposite sides of the crushing-hammer so that the crushing stress is borne by outward. pressure on the frame and inward pressure on the crushing hammer, without causing any serious strains to wrench the crushing-hammer 3 out of its links or ways.

20 designates a. pitman; 21 an eccentric and 22 a pulley for reciprocating the crush` ing-hammer to which the pitman is pivoted by pin 23; 24 is a chute to carry the crushed material away from the machine.

that claim is l. A rock-breaker comprising a frame having a Vertical openino` diamond-shape in plan and forming a crusiing-chamber, a crushing-hammer mounted to reciprocate horizontally in the crushing-chamber, the upper surface of the crushing-hammer slanting outwardly fromv a center, and the hammer being substantially the same shape in plan as the crushing-chamber.

2. A rock-breaker comprising a frame having a crushing-chamber diamond-shape in plan with Vertical walls open at the top and bottom, a crushing-hammer mounted to reciprocate in the crushing-chamber, the crushing-hammer being approximately the same shape in plan as the crushing-chamber and the upper surface of the crushing-hammer slanting outwardly from a center, and means for reciprocating the crushing-hammer, there being bearing-openings at the ends of the crushing-chamber and blocks at the ends of the crushing-hammer extending into the bearing-openings.

3. A rock-breaker comprising` a frame having a crushingehamber dialnond-shape in plan, open at` the top and bottom, a crushing-hammer in the crushing-chamber and corresponding to the chamber in plan shape and fitting loosely for reciprocation, there being a wedge-shape opening between the crushing-hammer and the wall of the crush ing-chamber; bearing-blocks extending from the ends of the crushing-chamber, blocks extending from the ends of the crushing-hammer into the bearing-openings, means for supporting the crushing-hammer in said openings, a pitman connected to theerushing-hammer through one of said openings, and an eccentricshaft for operating the pitman.

l. A rock-breaker comprising a frame having a crushing-chamber diamondshape in plan and open at the top and bottoni, a crushing-hammer in 'the crushing-chalnber and corresponding to the chamber in plan shape and fitting loosely for reciprocation, there being a wedge-shape opening between the cruShing-hammer and the wall of the crushi11g-chamber; bearing-blocks extending from the ends of the crushing-chamber, blocks extending from the ends of the crushing-hammer into the bearing-openings, links for supporting the crushing-lu1nnner in said openings, a pitman connected to the crushing-hammer through one of said open ings, and an eccentric-shaft for operating the pitman.

In testimony whereof, I have hereunto set my hand at Los Angeles, California. this 10th day of July 1906.

CHARLES C. LANE.

In presence of- JAMES R. TowNsnNn, JULIA TowNsnNn.

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